The problem is that, Server doesn't not able to open this url: OR

When you run this url from your browser then it would work and show you some kind of data like:

But when we try open the url using script then server show warning:
"failed to open stream: Connection refused"

Same error with cURL, SOAP or fopen.

Please check here:

Port 4430 is enable on server.

I am not sure which settings to ajdust on server to make it work.
Please share your experience if you could help.

file_get_contents may not be allowed to open an external URL. What else have you tried? What's in the manual? Do you perhaps need a client certificate?